| commit | 9cef48eae9a4776ef2f42687072e7c61cb33e10d | [log] [tgz] |
|---|---|---|
| author | Evan Cheng <evan.cheng@apple.com> | Fri Sep 11 00:39:26 2009 +0000 |
| committer | Evan Cheng <evan.cheng@apple.com> | Fri Sep 11 00:39:26 2009 +0000 |
| tree | 7fddce7fcbedc911237fdf7f1d6acfd00df602fd | |
| parent | 4a215a13c3035a8818254b61267be77def4a2a37 [diff] |
It's not legal to fold a load from a narrower stack slot into a wider instruction. If done, the instruction does a 64-bit load and that's not safe. This can happen we a subreg_to_reg 0 has been coalesced. One exception is when the instruction that folds the load is a move, then we can simply turn it into a 32-bit load from the stack slot. rdar://7170444 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81494 91177308-0d34-0410-b5e6-96231b3b80d8